Autoionization electrons following double excitation of D2 in 2.4keV e−+D2 collisions: Experimental and theoretical evidence - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2004

Autoionization electrons following double excitation of D2 in 2.4keV e−+D2 collisions: Experimental and theoretical evidence

Résumé

The electron spectra originating from ionization of D2 by impact of 2.4 keV electrons have been measured at various emission angles. After subtraction of the direct ionization background, three peaks are clearly visible in the electron energy range 1–20eV. The existence of these peaks is confirmed by theoretical calculations. Two of these peaks are due to autoionization of doubly excited states lying above the first and second ionization thresholds. The third peak is attributed to the strong interference between direct ionization and autoionization while the molecule is already dissociating.
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hal-01218782 , version 1 (21-10-2015)

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Jean-Yves Chesnel, David Martina, Przemyslaw Sobocinski, Omar Kamalou, François Frémont, et al.. Autoionization electrons following double excitation of D2 in 2.4keV e−+D2 collisions: Experimental and theoretical evidence. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2004, 70 (1), pp.010701(R). ⟨10.1103/PhysRevA.70.010701⟩. ⟨hal-01218782⟩
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